Pc Board - Kenwood TH-K4AT Service Manual

A B
TH-K4AT/K4E
1
TX-RX UNIT (X57-675X-XX) (A/3) 0-21 : M2 2-71 : E
Component side view (J72-0884-19 A/3)
2
3
LV
+
C26
4
R21
5
6
R131
Q23
C189 C188
7
L46
L45
C186
8
C166
1
R127
9
C176
8
R135
10
11
Ref. No. Address
IC1 4D
12
IC2 8F
IC3 9B
IC6 6M
IC9 9P
IC10 6P
13
IC11 6Q
IC15 7P
44
14
C D

PC BOARD

C24 R19
+
R24
1
+
R30
Q4
IC1
C38
C37
+
C27
8
C42
R36
C40
+
C41
C66
R33
C126
C57
C271
C272
C54 C56
C55 R38
R90 C125
R351
D15
C190
16
+
C116
C182
IC3
R116
9
R118
C174
C170
C173
Q21
R117
C175 Q22
R123
C171
Ref. No. Address Ref. No. Address
IC17 9I Q21
Q4 4C Q22
Q6 3E Q23
Q12 5J Q24
Q13 7F Q27
Q14 9E Q31
Q15 5E Q34
Q20 10E Q35
E F
Q6
R20
+
R18
16
9
R34
Q15
C128
C70
Q13
S
D
G
C114
D14
R82
5 4
IC2
8 1
C117
Q34
G
R212
D
S
C115
C168
R215
R216
Ref. No. Address Ref. No. Address
10D Q36 10E
10D Q37 8L
6B Q38 7K
8D Q41 9Q
6H Q47 7S
6L Q51 4H
9F Q53 9Q
10F Q55 5P
G H
D62
D70
D63
D64
CN9
D65
R231
SET
+
R144
R143
S
R137
D Q27
G
VR6
TH3
R151 R152
DCS BAL
R153
C200
VR1
R145
FREQ
TH2
+
C195
R74
C108
R76
C106
D31
J2
DC IN
Ref. No. Address
Q56 7L D31 9F
Q57 8Q D34 7L
D7 4B D40 7S
D14 8E D41 7S
D15 9D D60 3H
D16 4D D61 3H
D25 6K D62 3H
D26 7L D63 3H
I J
CN6
R252
S
G Q12 D
S
C78
C86
TH1
C512
+
C213
C351
R166 R165
C331
1 8
IC17
R171
4 5
R1
C211
C212
C203
R324 R168
C204 R172
Ref. No. Address
D64 4H
D65 4H
D69 3G
D70 3H
D71 3H
D72 3G
D81 10G